Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 517 [Rate centres in NPA 517] [Dial plan for NPA 517]

NXX: 994

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-994 A Portland MI MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-994 0 Portland MI   279B CLEAR RATE COMMUNICATIONS, INC. - MI 346      
517-994 1 Portland MI LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346      
517-994 2 Portland MI MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-994 3 Portland MI MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-994 4 Portland MI MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-994 5 Portland MI LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346      
517-994 6 Portland MI   961J WOW! INTERNET, CABLE AND PHONE 346      
517-994 7 Portland MI MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-994 8 Portland MI LNNGMIMNX4Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346      
517-994 9 Portland MI MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.